Dry cell.



' F. J. HUMEL.

DB1 GBLL. APPLICATION II'ILED 001214, 19111 Patented. .m 23,1912.

' will` be quickly .moistened; but it always titl sTATEs PATENT oEEioE.

- FRANK J. HUMEL, OF CLEVELAND, OHIO, l'ASSIIG1\`I'OIR 'JTOl NATIONAL CARBON GOMIVAN-Y,

0E CLEVELAND, oHIo, A CORPORATION oFvNEW .iEnsE Y.-

l DRY CELL,

Specification of Letters Patent.

Paeented'aan. 23,1912.

' yAppiiaaiii ala otobe 14, 1911. seriai No. 654,585.-

To yal? whom 'itmay concern:

Be it known 4that I, FRANK J.- HUMEI., a

act description.

The invention relates tothe type of dry zells in which the battery mix, in a dry condition is packed around a hollow perforated carbon electrode in a zinc cup which' has a pibulous lining. These cells are inactive,

whenv made, and are rendered vactive by pouring water into the hollow carbon electrode. This' water passesthrough the perl forations in said electrode, into the mix; the expectation beinlgtliat this water will,

in time, moisten the mix and the bibulous lining, and dissolve and render active the salts in the mix which serve asthe active part of the electrolyte. Such cells in the form in which :they have heretofore been put on the market are not altogether satisfactory, because', when water is'poiiredinto the perforated carbon/ electrode, it will, as it runs through thelperforationstherein, tend to fall by gravity through the mix tothe bottom of the cell. The mix adjacentto the saidI electrode. and at the bottom of the cell takes a long time to. satisfactorily'moisten the 'bibulous' lining and the mix. adjacent thereto, which is, of course, objectionable.4

Inmany cases, the bibulous lining' and en tire mix are never made uniformly moist,

which decreases the efficiency `and life of the cell; and in some cases, the bibulous liningl and mix vadjacent thereto are never rendered -mo'ist enough to .cause any satisfactiry op-- eration of the cell.

The object of this invention is to secure the speedier and 'more uniform moisteiiing of the entire mix and the cell lining.

The invention consists in arranging within he mix shelves, preferably in the form of iskswhich exten-d outward from the perforated electrode toward the cell lining,-l Said shelves being.)- made of porous, absorl'ient or cellular material, such -as will allow free diffusion of the electrolyte through the mix, but which will nevertheless direct the water outward through the mix and toward the :ell lining.

In the'drawings, Figure l isa. vertical l central sectio'iiof a-drycell embodying this invention; andl Fig. 2 is ahorizontal section inthe plane'indicated. by line 2 -2 on Fig..

1, a portion'o'f th'e disk G bengbro-ken away to show the' battery mix.

Referring to the parts by letters, A repre-- sents theusual -zi-nc cup; B the bibulous lining thereof; C the hollow perforated carbon electrode D the battery 'mix Whi :h is packed in said lined lcup around the electrode C; and E. the seal. All of these parts in construction, composition and arrangement are of the ordinary sort., Y

G, G represent disks which are fitted around the carbon elect-rode and, extend outward therefroinclose tothe cell lining. These disks are buried and ypacked in the mix shown; and there maybe any number v of them. They must be made of some porous, absorbent or cellul4 'material, so as to permit the free diffusionl of the electrolyt'e; but they should be made of such mate rial as will. not immediately absorb all of the water, butwill on the contrary act as shelves along-which thewater, which comes throughthe perforations, c, will flow outward toward the walls-of the cup land 'the 4lining thereof. In' the particular constructionshownthesedisks are made of what is known as corrugated straw board,-com- -prising twoilatstrawboard disks g, g, vand an intervening corrugated disk g.

Having described my inventiomI claim: 1. A dry cell comprising a lined cup, a hol low perforated electrode, battery mix packed in said lined tup around the electrode, and shelves of porous material which are buried in the battery mix and extend from the perforated yelectrode outward toward the cell lining. 4

2. A dry cellfcomprisingja lined cup, a.

hollow perforated electrode, battery-mix;

packed in said lined cup around the electrode, and disks oflporoiis4 material fitted around theperforated electrode and buried' in said mix. and extending therein toward the cell lining.

- In testimony whereof, I hereunto aiiix my signature in the presence of two witnesses.

, FRANK J.' HUMEL.

1Witnesses:v

' RICHARD H. HARVEY,

L. O. Brooks. 

